Question

Question:

A scientist measured heritability in crop yield per acre of a strain of wheat grown on a farm in eastern Europe and determined that it was 80%. She can therefore conclude that:

ANSWER CHOICES:

a-None of the answer options is correct.

b-there will be 80% of variation among individuals due to genetic differences when the same strain of wheat is grown on the same farm in eastern Europe the following year.

c-when the same strain of wheat is grown on two different farms at the same time 80% of the average difference in yield per acre will be due to genetic differences among populations.

d-80% of the total crop yield is due to genotype and 20% to environment. there will be 80% of variation among individuals due to genetic differences when the same strain of wheat is grown in Nebraska.

Answer 1

Correct answer is B

Heritability is refer to the genetic differences or variation among the individual . These variations are influenced by the genotype or genetic composition of an individual not by an environment.

There will be 80% variation among the individual due to genetic differences and these changes are not influenced by environment.

Incorrect statement:

Option c is incorrect because wheat is grown on same farm in eastern Europe .

Option D is incorrect because wheat is grown in eastern Europe and not in Nebraska.